Improvement in coffee-mills



ANTeiNELEPAeE..

improvement in Coffee Mills. No. 120,28?, Patemedocr. 24,1371.

UNITED STATES ANTOINE LEPAGE, OF WOODHAVEN, NEW YORK.

IMPROVEMENT IN COFFEE-MILLS.

Specification forming part of Letters Patent No. 120,287, dated October24, 1871.

To all whom fit may concern:

Be it known that I, ANTOINE LEPAGE, of Woodhaven, in the county ofQueens and State of New York, have invented certain new and usefulImprovements in Hand Coffee-Mills, and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawing forming a part of thisspecification.

The obj ect of this invention is to afford greater convenience foradelicate adjustment of the cones of a coffee-mill, to enable it to grindat any desired degree of iineness. The invention consists, iirst, in aloose notched collar, which is arranged on the spindle under the nut andbetween it and the top of the spindle-standard, so as to form thevertical bearing of the spindle, and which is locked to the spindle by ahorn projecting from the drivingcrank so as to turn with it, and therebyrelieve the nut from all friction and all consequent liability toaccidental disturbance, while enabling it to be adjusted with extremedelicacy. It also consists in a novel construction of the outer femalecone, the basering and hopper, whereby the mill can be readily andfirmly secured to boxes or boards of different thicknesses withoutinserting any of the parts from beneath and without the use of screw.

In the accompanying drawing, Figure l is a central vertical section ofthe mill and its box. Fig. 2 is a similar section of the mill alone atright angles to Fig. l. Fig. 3 is a sectional plan ofthe grinding-conesdetached. Fig. et is ahori- Zontal section ofthe mill taken at thedotted line w w in Fig. l. Fig. 5 is a plan ofthe hopper. Fig. 6 is aplan of the base-ring. Fig. 7 is an inverted plan of the saine; Fig. S,a diagram showing the shape of hole in the box, and Fig. 9 is a detachedview of the collar.

Similar letters of reference indicate correspond ing parts in all thefigures.

A is the loose collar, the interior of which is large enough for thescrew on the spindle B of the male cone C to pass loosely through it.This collar is arranged on the spindle B between the adjusting-nut D andthe top of the spindle-standard E, which is cast with or rigidly securedto the female cone F. This collar has formed on its periphery twoprojecting jaws or lugs, a c, into the recess or notch between whichthere projects a horn, G, that is provided on the crank H, and by meansof which the collar is locked to the crank and the spindle in suchmanner as to be compelled to turn with them without interfering with ahorizontal adjustment of the spindle. The lower portions b b of the spindle-standard E are made to project out from the upper part of theexterior of the female cone F, as shown more especially in Fig. 2, andon opposite sides of the exterior of `said cone are two projectingstops, c c, and at the bases 0f these stops are lugs dd, wh ich areslightly inclined in order to work in screw-threads or spiral grOOVeS ina hole in the top of the wooden box I. rJlhese grooves may be cut orindented into the wood by the lugs d dthemselves, or cut by a specialinstrument. J is the base-ring, which has an inner flange, c, on whichthe lower edge of thehopperK rests, said iiange having notches orrecesses ff formed in its edge, and near these notches projections g g.Formed on oppositesides of the interior of the base-rin g in line withthe projections g g, are stops h h. The hopper K is 0f the ordinaryforln and has two notches, n up in its lower edge, of a size to fit overthe projections g g on the base-ring. The box I is of the usual make andhas a hole in it for the shape shown in Fig. 8, and recesses i 1l beingfor the passage of the lugs d d on the female cone F. To put the severalparts ofthe mill together and secure the mill to its box, the femalecone F is first placed over the male cone; then the loose collar A andnut D are put on the spindle of the latter. The crank is then screwedonto the end thereof, with its horn G in the notch in the said collar.The base-ring J is now slipped over the female cone F, its notchedportions j' j' passing over the said projecting' portions b b of thespindle-standard E. The ring is then turned to bring the latter over theprojections g g on the base-ring. The hopper is now placed over thebase-ring with its notches n n fitting the said projections g g on thebase-ring J, so that they are locked to turn together and the milliitted to the hole in the box with the lugs d d in the recessestithe/rein. The hopper is now taken hold of and turned, thereby bringingthe solid portion of its edge under the projecting portions b b of thespindle-standard E, and thereby securing it and also bringing the stopsh h on the interior of the base-ring J into contact with those c c onthe female cone F, and thereby locking them together 5 and the continuedturning of the hopper forces or screws the lugs d d into spiral groovesin .the periphery of the hole in the box, and the mill is thereby firmlysecured to it. To adjust the cones relatively to each other theadjusting-nut D is turned on the spindle B and thereby moves the loosecollar A vertically thereon; but does not turn it, as it is prevented bythe horn Grtting in its notch. As the nut has a bearing that moves withit, there is no need to lock it separately, as, bein g free from slidingfriction, it Will remain in any position.

What I claiin as my invention, and desire to secure by Letters Patent,is-

l. The notched collar A arrangedon the spindle B between thespindle-standard E and the Yadjusting-nut D, for Which it forms thebearing, in combination' with the rigid horn G on the crank H,substantially as and for the purpose herein set forth.

2. rlhe combination of the notches n n in the hopper, the projections gg on the base-ring J, the projecting portions of the spindle-standard E,the stops h h on said ring` and those on the female cone, and the lugs dd on the latter, substantially as and for the purpose described.

` ANTOINE LEPAGE.

Witnesses:

FRED. HAYNES,

R. E. RABEAU. (88)

